Bug 143838
| Summary: | ps -C only uses 1st 8 chars of command name | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 3 | Reporter: | John S. Hendry <jhendry> |
| Component: | procps | Assignee: | Karel Zak <kzak> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 3.0 | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2005-05-20 03:25:50 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 132991 | ||
Yes, your're right there is 8bytes limit. The latest version of procps has 16bytes limit for this. I think it should be works without limits... I will prepare a patch for this. The kernel only provides 15 characters to work with. Recent procps releases use all of this. An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2005-156.html |
Description of problem: The "ps -C" command only matches on the first 8 chars of the command it is given to check. Version-Release number of selected component (if applicable): Red Hat 7.3 and Red Hat Enterprise Linux v3. How reproducible: 100% (bash or tcsh) Steps to Reproduce: (bash example given) 1. Make the following 2 shell scripts: $ ls -l total 8 -rwxrwxr-x 1 jhendry sdss 32 Dec 29 11:21 psTest_1 -rwxrwxr-x 1 jhendry sdss 32 Dec 29 11:21 psTest_10 $ $ cat psTest_1 #!/usr/local/bin/bash sleep 100 $ $ cat psTest_10 #!/usr/local/bin/bash sleep 100 $ 2. Run them both in the background simultaneously: $ for x in $(ls);do ./$x& > done [1] 1087 [2] 1088 $ 3. Enter an "ps -C" for either of the two scripts OR for any name sigificant AFTER the first 8 chars: Actual results: $ ps -C psTest_10 PID TTY TIME CMD 1087 pts/0 00:00:00 psTest_1 1088 pts/0 00:00:00 psTest_10 $ $ ps -C psTest_123456 PID TTY TIME CMD 1087 pts/0 00:00:00 psTest_1 1088 pts/0 00:00:00 psTest_10 $ Expected results: $ ps -C psTest_10 PID TTY TIME CMD 1088 pts/0 00:00:00 psTest_10 $ $ ps -C psTest_123456 PID TTY TIME CMD $ Additional info: Our machines include both Redhat 7.3 and Redhat Enterprise Linux. The same problem occurs on both platforms. The same problem occurs whether running bash or tcsh. On Redhat 7.3 $ ps --version procps version 2.0.7 $ On Redhat Enterprise Linux $ ps --version procps version 2.0.13 $